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Related Experiment Videos

At issue: speech fluency and schizophrenic negative signs

M Alpert1, A Kotsaftis, E R Pouget

  • 1Dept. of Psychiatry, New York University Medical Center, NY 10016, USA.

Schizophrenia Bulletin
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

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Schizophrenia patients with negative symptoms exhibit speech pauses that correlate with flat affect and alogia. This suggests a shared speech generation difficulty underlying these negative symptoms in schizophrenia.

Area of Science:

  • Psychiatry
  • Linguistics
  • Speech Science

Background:

  • Negative-syndrome schizophrenia is characterized by underproductive speech with hesitations and pauses.
  • Previous research has not fully elucidated the relationship between specific speech characteristics and negative symptoms.

Purpose of the Study:

  • To investigate the acoustic properties of spontaneous speech in negative-syndrome schizophrenia patients.
  • To determine the correlation between speech pausing and specific negative symptoms like flat affect and alogia.

Main Methods:

  • Acoustic analysis of spontaneous speech samples from patients with negative-syndrome schizophrenia during interviews.
  • Correlation analysis between pause duration and clinician's ratings of negative symptoms.

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Main Results:

  • Pause duration in speech strongly correlated with clinician's impressions of flat affect and alogia.
  • Pausing showed less correlation with associality and other negative syndrome aspects.
  • Hesitations suggest a word-finding difficulty, potentially indicating a specific speech generation deficit.

Conclusions:

  • Speech pausing is a significant objective measure linked to flat affect and alogia in schizophrenia.
  • Shared underlying mechanisms may exist between speech generation difficulties and specific negative symptoms.
  • Acoustic analysis offers valuable insights into schizophrenic psychopathology beyond clinical observation.